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2 years ago

Calculate the area of this trapezium. 9 cm 6 cm 15 cm

Mathematics

1 answer:

Bogdan [553]2 years ago

8 0

Answer: The answer is 112.5

Step-by-step explanation: Plug them in the trapezoid area formula (a+b/2 x h).

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If AC=18x-7,find the x. Round to the nearest hundredth if necessary <br>AB=7x+29 <br>BC=30

Margaret [11]

Answer:

$x=6$

Step-by-step explanation:

AC = AB + BC

$18x-7=(7x+29)+30$

$18x-7=7x+29+30$

$18x-7=7x+59$

Add 7 to both sides:

$18x-7+7=7x+59+7$

$18x=7x+66$

Subtract 7x from both sides:

$11x=66$

Divide both sides by 11:

$\frac{11x}{11}=\frac{66}{11}$

$x=6$

6 0

3 years ago

to determine whether the inverse of a function is a function you can perform the horizontal line test, true or false

Svet_ta [14]

You can perform the horizontal line test on the original to see if the inverse will be a function. You will not perform the horizontal line test on the inverse.

3 0

2 years ago

Read 2 more answers

I need to answer number one I will give as many points as I can for the question and I will mark brainiest

Grace [21]

Answer:

diagram is below
6, 11, 16, 21
s[n] = s[n-1] +5
26, 31, 36

Step-by-step explanation:

a) See below for the next diagram in sequence.

b) The numbers of straws in each diagram are ...

6, 11, 16, 21, ...

c) Each term is 5 more than the previous one, so the recursive rule for the number of straws is ...

s[1] = 6

s[n] = s[n-1] +5

d) The next three terms of the sequence are ...

..., 26, 31, 36, ...

6 0

2 years ago

Hannah estimated that a bottle could hold 2.2 liters. The actual volume of the bottle was 2 litters. What was the percent error

MrRa [10]

Answer:

I dont have a direct answer but i think i can help.

Step-by-step explanation:

For example, 2%, read "percent", is two every hundred. When we have 100 liters of water, 2% is 2 liters. If we have 200 liters of water, then 2% is 4 liters. Converting a percentage into a fraction can be done by dividing by 100, following the definition of a percentage.

4 0

2 years ago

Work out the surface area of this sphere.

MrRissso [65]

Answer:

452.2 cm

Step-by-step explanation:

A = 4πr²

A = 4 (3.14) (6)²

A = 4 (3.14) (36)

A = 452.16

A = 452.2 cm (nearest tenth)

5 0

2 years ago